“研究气泡的运动规律”的实验是苏科版8年级的一个重要的探究匀速直线运动规律的实验,可以很好地培养学生的探究能力,尤其是数据处理、图像分析得出规律的能力.如果用水兑红墨水染色做有几个缺陷:(1)时间较长约20s.(每10cm)(2)数据差距较大在2~5s(每10cm),以至不能说明气泡做的是近似匀速直线运动.笔者通过多次试验改进,做法如下.1器材的改进在内径约为7~8 mm、长约 The experiment of studying the motion of bubble The experiment is an important 8th grade of Suke version of the experiment of constant linear motion law, can well develop students’ inquiry ability, especially data processing, If the water against the red ink dyeing do several flaws: (1) longer time of about 20s. (Every 10cm) (2) the data gap is larger in 2 ~ 5s (every 10cm), can not even explain the bubble is Similar to uniform linear motion .I tried to improve through many tests, the practice is as follows.1The improvement of the equipment in the inner diameter of about 7 ~ 8mm, about